The article deals with the LNG Acceleration Act (LNGG) and its compatibility with Constitutional, European and International Law. Firstly, the authors discuss the LNGG’s legal demand assessment with a special focus on the climate impact of LNG terminals. Secondly, the article deals with the compatibility of the exemption from the obligation to conduct an environmental impact assessment with European Law. Then the article focuses on the international legal boundaries to the shortening of interpretation and objection periods. Lastly, the authors examine the LNGG’s regulations on early commencement, the legal presumption in water law and the question of „h2 readiness“.